Your source for information and technical support for the
Ellison Throttle Body Injector
The Ellison TBI is an excellent replacement the conventional float carburetor on the Polish PZL Franklin engines. The six cylinder O-350 engine uses the model EFS-4-5, while the four cylinder O-235 uses the model EFS-3A.
See comments related to carburetor heat, vapor formation, fuel filtration, and primer suggestions when planning a TBI installation on a Franklin engine.
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